Ro

1 of 3

noun

ˈrō
plural -s
: an artificial language intended to be international that rejects all existing words and roots and is based on analysis and classification of ideas
Roist
ˈrōə̇st
noun
plural -s

ro

2 of 3

abbreviation (1)

1
recto
2
road
3
roan
4
rood
5
[French rouble] ruble

RO

3 of 3

abbreviation (2)

1
radar operator
2
receiving office
3
reconnaissance officer
4
recruiting officer
5
regimental order
6
rial (Omani), rials (Omani)
7
royal observatory
8
royal octavo

Word History

Etymology

Noun

coined 1906 by Edward P. Foster †1937 American clergyman

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Dictionary Entries Near Ro

Cite this Entry

“Ro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Ro. Accessed 17 Dec. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!